Practice problem
Find the inverse function of f(x)=4−8xf(x) = 4 - 8xf(x)=4−8x.
f−1(x)=14−18xf^{-1}(x) = \frac14 - \frac18 xf−1(x)=41−81x
f−1(x)=14x−18f^{-1}(x) = \frac14 x - \frac18f−1(x)=41x−81
f−1(x)=18x+12f^{-1}(x) = \frac18 x + \frac12f−1(x)=81x+21
f−1(x)=−18x+12f^{-1}(x) = -\frac18 x + \frac12f−1(x)=−81x+21
f−1(x)=18x−12f^{-1}(x) = \frac18 x - \frac12f−1(x)=81x−21
f−1(x)=−18x−14f^{-1}(x) = -\frac18 x - \frac14f−1(x)=−81x−41
Type a concept, like “slope” or “photosynthesis”.